Slip-joint.



B. G. WATTERS. SLIP JOINT.

APPLICATION FILED um 1a, 1913.

1,1 19,1 30. Patented Deb. 1, 1914;

WITNESSES: lA/I/E/VTQI? I'HE NORRIS PETER: \.u., PHOTO-LITHQ.WASHINGTON. D. c.

1 UNiTED STATES PATENT OFFICE.

'nnwnnn c. w-arrnns, on ansas CITY, MISSOURI.

,To allwhom it may concern Be it known that I, ZEDW-ARD WA'IYIERS,

:a citizen of :the' United States, residing at Kansas City, in thecounty of Jackson and State of Missouri, have invented certain new anduseful Improvements in ;Slip

Joints; and I. do declare the followingitofbe a full, ,clear, and exactdescription of ithe invention, such as will enable iothers skilled inthe art to which ait appertains to make and use the .-same, referencebeing had tothe accompanying drawings, and to the letters and figures ofreference 'marked thereon,

which form a part of this specification.

My invention :relates to slip, joints, and more particularly'to a .jointfor use in iconnection .with a dressmakers square, wherein it isdesirable to provide two or more rules 1 orpattern members for eachsquare,;1norder to adapt'the square for different uses, the principalobject of the :invention beingto provide a joint having members adaptedfor holding the partsof'thesquarerigidly, and

whereby the members may be easily andquickly connected or disconnected.In accomplishing this object I have Iprovided improved details ofstructure, t epreferred form of which is illustrated in the accompanyingdrawings, wherein Figure I is a plan View of'a dressmakers squareprovided with a slip jointconstructed according to my invention. Fig. IIis an enlarged plan view of the joint showing the members partlydisconnected in dotted lines.

Fig. III is an end view of the joint. Fig. IV

is an enlargedv section on the line IV-IV,

Fig. II. Fig. V is a detail perspective view of the joint member 17.Fig. VI is a similar View of the car 27. j I

Referring more in detail to theparts: 1 designates'the body of a square,and 2 one of the removable members which may be used in connection withthe body, both of the parts beingprovided with cooperating slide jointmembers of the following construction:

Mounted on the body member 1 is a jointsocket member 3, which ispreferably formed in two sections or halves, each of which has a facingchannel 1 and edge rail 5, the latter having a lip 6 overhanging thechannel part,

which, when themembersare 1n assembled relation, forms a dovetailedgroove for carrying the rib of the mating joint section. The outer edgeof the socket member 3 is down-cut to provide the fins 7, which pro- ISpecification of LettersfPatent. at nt fp 1914 aepplicationfileajune-ie, 1911s. :Serial 170375733362.

square section 1. The halves orparts of the socket member 3 are rigidlyand ,perma- ,nently connected by rivets 11, and the socket member isfixed to the body of the square by other rivets .12 passing through thema terialof which the squareis formed, and through the fin wings 9..Inkorder to further secure the socket member to the body of the 1square and impart rigidity to the joint, I provide ears .13, each ofwhich comlPllSGS a :body portion which is adapted to seat in acountersunk recess 11 in the body section 1, and has ara'il 15 atitsouteredge seated onthe'projecting jointifin 7.

El he jointmember for the body 2 com- 'PIfISBS a body portion 17having'a neck 18 and head 19, adapted respectively for slidingtravelbetween theedge rails-5 and in'the socket 4 of the mating joint section1, the head having edge portions 20101 projection into the dove-tailedgrooves in said mating :section to steady the parts when in assembledrelation. The body portion 17 is provided with a fin 21 having wings 22which i are similar respectively to the fin and wings g body member andfin.

In order to firmly seat the ears 27, I prefer to cut the ends of thegroove 25 in outwardly converging planes, so that when the rib 26 isseated in its groove it will be locked in place by the abutting edges ofthe groove.

While I do not wish to limit myself to i such construction, it isapparent that :the joint is particularlyiadapted for a square,

constructed of difl'erent layers of material,

or what is known as a veneer construction, as with such a construction,the inner portions of the bodies may be cut away to form the jointgrooves much more conveniently than if it were necessary to split therelatively thin material.

It is apparent that with the parts constructed and assembled asdescribed, the separate members of the square may be easily and quicklyassembled or taken apart,

so that a singlebody member may be provided with plurality of'heads' ofdifferent patterns, or the like, so that it is not neces'.

sary for a dressmaker to have aseparate complete square for eachpattern, It is also apparent thatthis construction is particu- ,larlyadaptable for squares, or the like,

I the other, as desired.

"Having thus described my invention, what I claim as new therein, anddesire to secure by Letters-Patent, is

1. A slip joint, comprising head and socket members, each having a finat'its inner edge, and ears adapted for cooperation with said members toattach same to a carrying structure, the head member having a grooveadjacent its fin, and the head ear substantially as set forth. v a

2. A slip joint, comprising head and socket members, eachhaving a tin atits inhaving 'a' portion forseating in said groove,

ner edge, and'an ear adapted {for coopera tion with said members toattach'same to a carrying structure, the ears for the socket havingtheir outer-edges supported on said members, andhaving bodyportionsovere lying the exposed areas between the fin wlngs. i

section having shoulders atv their outer 4. The combination withseparate square sections, each having a grooved end, of socket and headjoint sections having fins projected into the slots in the squaresections respectively, and ears on said joint sections countersunkinopposite faces" of the square sections. v

In testimony whereof I aflixmysignature in presence of two witnesses.

EDWARD cwA T Rs. l

Witnesses:

ARTHUR W. CArs, LETA E. Corns.-

Copies 0! this patent may be obtained for five cents each, by addressingthe Commissioner. of Qatents, Washington, D. 0; r

